Red Seal Plumbing Practice Exam

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Elevate your plumbing career with our Red Seal Plumbing Exam quiz. Crafted to test and enhance your knowledge, ensuring you're fully prepped for success. Dive in now!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

After the inspection of a hot water heating system shows that the system pressure is in excess of the designed operating pressure, which device will cause this problem?

Pressure relief valve
Water-feed valve
Thermostat
Expansion tank

The correct answer is: Water-feed valve

A Pressure relief valve is used to relieve high pressure in a system, not cause it. C: Thermostat is used to control the temperature, not the pressure. D: Expansion tank helps maintain constant system pressure, not cause it. The only device that can cause high pressure in a hot water heating system is the water-feed valve. This valve controls the water supply to the system and if it is malfunctioning, it can allow too much water into the system, causing the pressure to exceed its designed limit.